Add the following link tags to the <head> of your HTML. Depending on where you place the generated icon files, you may need to adjust the paths.
<link rel="icon" href="/favicon.ico" sizes="any"> <link rel="icon" href="/icon.svg" type="image/svg+xml"> <link rel="apple-touch-icon" href="/apple-touch-icon.png"> <link rel="manifest" href="/manifest.webmanifest">